Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

This research investigates experimentally the behavior of interior slab-column connections made of lightweight concrete and provided with shear reinforcement. The experimental program included testing of five flat slab specimens having dimensions 1100*1100 mm with 120 mm thickness. The investigated variables are the concrete type, the shear reinforcement, and the column dimensions. All specimens had compressive strength 30MPa. The tested five specimens were loaded at interior column with a single concentrated load until failure. The general deformational behavior of the tested specimens was examined and recorded. To evaluate the results of the tested specimens, different international codes have been used to calculate the punching strength of test slabs. The test results showed that using of Lightweight Concrete decrease the performance of slab behavior than normal weight Concrete and reduced the shear punching capacity; also showed that the presence of shear reinforcement improved punching shear but without remarkable percentage, while changing the column dimensions had remarkable effect on the punching shear capacity

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